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Finding the Fourth Proportional to 240,995.84, 361,473.60 and 74,768

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Solution

The fourth proportional to 240,995.84, 361,473.60 and 74,768 is: 112,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,995.84 : 361,473.60 = 74,768 : x
  2. Step 2: Convert to fraction form
    240,995.84/361,473.60 = 74,768/x
  3. Step 3: Cross multiply
    240,995.84x = 361,473.60 × 74,768
  4. Step 4: Simplify right side
    240,995.84x = 27,026,658,124.80
  5. Step 5: Solve for x
    x = 27,026,658,124.80/240,995.84
  6. Step 6: Final answer
    x = 112,145.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.